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2022-10-19: The Equation That Explains (Nearly) Everything!
- 01:48: ... forces of nature in terms of gauge symmetries. And they succeeded. The weak interaction arises from a slightly more complicated SU(2) symmetry, while the strong ...
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2022-04-27: How the Higgs Mechanism Give Things Mass
- 15:06: ... gain mass and become the two W and one Z bosons of the weak interaction. The fourth boson manages to escape unscathed and massless, ...
- 03:36: ... the next episode we tried the same trick to explain the weak interaction as arising from symmetries. We saw that we could invent a pair of ...
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2022-03-16: What If Charge is NOT Fundamental?
- 10:52: To fully explain weak interactions we need a second charge - this one carried by the Z boson.
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2021-01-26: Is Dark Matter Made of Particles?
- 11:25: But a WIMP, with its extremely weak interaction, would more easily dodge its antimatter buddy - and so countless may have survived to this day.
- 11:45: And that interaction strength is about the same as the weak interaction.
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2020-11-18: The Arrow of Time and How to Reverse It
- 10:58: ... went thorugh another phase transition - a vacuum decay - then the weak interaction would fundamentally change - to become a different force with different ...
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2020-11-04: Electroweak Theory and the Origin of the Fundamental Forces
- 00:57: Let’s start with the mysterious and often misunderstood weak interaction.
- 02:10: Fermi was motivated by the apparent extreme short range of the interaction - and that short range is what earned it the name “weak” interaction.
- 02:19: But Fermi’s model only worked at low energies, and neither it nor its successors explain why the weak interaction violates charge-parity symmetry.
- 03:06: In 1957, Julian Schwinger proposed a set of force mediating gauge bosons for the weak interaction.
- 03:12: Given that the weak interaction could change a neutral particle into a pair of charged particles this mediating particle must itself be charged.
- 04:02: Anyway, this new gauge theory of the weak interaction seemed to be okay with parity violation, and it wasn’t only accurate at low energies.
- 11:14: Well remember that I said that the weak interaction somehow seems to involve electromagnetism?
- 02:19: But Fermi’s model only worked at low energies, and neither it nor its successors explain why the weak interaction violates charge-parity symmetry.
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2020-08-10: Theory of Everything Controversies: Livestream
- 00:00: ... said that advice is every once in a while think a little bit about the weak interactions and then he smiled and he said that really worked for me and and i ...
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2020-02-11: Are Axions Dark Matter?
- 11:08: ... all the right properties - no direction interaction with light, and only weak interactions via the other forces. And although these particles are extremely light, ...
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2019-01-16: Our Antimatter, Mirrored, Time-Reversed Universe
- 03:02: ... of the standard model the great parity violating process is the weak interaction which only affects left chiral fermions right chiral fermions don't feel ...
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2018-12-12: Quantum Physics in a Mirror Universe
- 00:02: ... theta are the same particle which turns out to be the K on and that the weak interaction which governs this decay does not concern parity but how to test this Yi ...
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2018-07-11: Quantum Invariance & The Origin of The Standard Model
- 10:12: These are, the gauge bosons, the photon for electromagnetism, the W and Z bosons for the weak interaction, and the gluon for the strong interaction.
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2018-07-04: Will A New Neutrino Change The Standard Model?
- 01:00: They don't even interact via the weak interaction.
- 05:46: Every neutrino we've ever observed was spotted using the weak interaction.
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